<http://webisa.webdatacommons.org/prov/59832150>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/347616772> .
<http://webisa.webdatacommons.org/347616772>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/347616772>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/347616772>	<http://www.w3.org/ns/prov#value>	"It is preferred that the flexible material be a polymeric material, such as polyvinyl chloride, which can be formed by an extrusion process." .